Effect of Thermal Conductivity and Emissivity of Solid Walls on Time-Dependent Turbulent Conjugate Convective-Radiative Heat Transfer

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Miroshnichenko Igor V.; Sheremet Mikhail A.

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Journal Paper

Paper Information

Journal: JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS Year:2019 | Volume:5 | Issue:2 Page(s): 207-216

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Title

Effect of Thermal Conductivity and Emissivity of Solid Walls on Time-Dependent Turbulent Conjugate Convective-Radiative Heat Transfer

Author(s)

Miroshnichenko Igor V. | Sheremet Mikhail A. | Issue Writer Certificate

Keywords

Natural convection

Surface radiation

Turbulence

Heat source

Thermal conductivity

Finite difference method

Abstract

In the present study, the conjugate turbulent free convection with the thermal Surface radiation in a rectangular enclosure bounded by walls with different thermophysical characteristics in the presence of a local heater is numerically studied. The effects of surface emissivity and wall materials on the air flow and the heat transfer characteristics are the main focus of the present investigation. The conjugate convective heat transfer for the fluid (air), described in terms of linear momentum, continuity, and energy equations combined with k-ε Turbulence model, is predicted by using the Finite difference method. The results for the isotherms, streamlines, and average Nusselt numbers along the Heat source are presented. The numerical experiments show that an increase in Thermal conductivity of solid walls illustrates the enhancement of heat transfer. Eventually, the main result obtained in this work provides a good technical support for the development and research of energy-efficient building materials.

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APA: Copy

Miroshnichenko, Igor V., & Sheremet, Mikhail A.. (2019). Effect of Thermal Conductivity and Emissivity of Solid Walls on Time-Dependent Turbulent Conjugate Convective-Radiative Heat Transfer. JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS, 5(2), 207-216. SID. https://sid.ir/paper/353258/en

Vancouver: Copy

Miroshnichenko Igor V., Sheremet Mikhail A.. Effect of Thermal Conductivity and Emissivity of Solid Walls on Time-Dependent Turbulent Conjugate Convective-Radiative Heat Transfer. JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS[Internet]. 2019;5(2):207-216. Available from: https://sid.ir/paper/353258/en

IEEE: Copy

Igor V. Miroshnichenko, and Mikhail A. Sheremet, “Effect of Thermal Conductivity and Emissivity of Solid Walls on Time-Dependent Turbulent Conjugate Convective-Radiative Heat Transfer,” JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS, vol. 5, no. 2, pp. 207–216, 2019, [Online]. Available: https://sid.ir/paper/353258/en

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